概括
改进的算法纠正了光学相位阵列 (OPA) 芯片中的随机相位错误,提高了Lidar系统的光束质量. 这种方法提供了更快的融合和更好的准确性,特别是在复杂的,大通道设计.
科学领域:
- 光子学是指光子学中的一个方面.
- 光学工程是指光学工程.
- 利达尔技术是利达尔的技术.
背景情况:
- 光子光学相位阵列 (OPA) 芯片中的随机相位错误会降低输出光束质量.
- 有效的相位错误校正对于基于OPA的激光雷达系统至关重要.
研究的目的:
- 引入和评估一个改进的适应性随机并行梯度下降 (ASPGD) 算法用于OPA随机相位错误校正.
- 为了证明算法的有效性,特别是在大频道数 OPA 设计中.
主要方法:
- 开发和实施一个增强的ASPGD算法.
- 使用制造的16通道光子OPA芯片进行实验验证.
- 与传统的随机平行梯度下降 (SPGD) 和遗传算法进行比较分析.
主要成果:
- 在16通道芯片上成功演示了ASPGD用于OPA相位错误校准.
- 与SPGD和遗传算法相比,ASPGD表现出明显更快的趋同.
- 用ASPGD实现了更高的纠正光束形状的共弦相似度值,特别是对于增加的通道数量.
结论:
- 改进的ASPGD算法为OPA芯片提供了高效和准确的相位错误校正.
- 这种算法在OPA设计中显示了对大型通道数量传统方法的卓越性能.
- 这项工作有助于OPA技术在芯片规模,远程Lidar应用中的实际部署.
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